title: Room temperature magnetism in layered double hydroxides due to magnetic nanoparticles.
abstract: Some recent reports claiming room temperature spontaneous magnetization in layered double hydroxides (LDHs) have been published; however, the reported materials cause serious concern as to whether this cooperative magnetic behavior comes from extrinsic sources, such as spinel iron oxide nanoparticles. The syntheses of crystalline Fe(3+)-based LDHs with and without impurities have been developed, highlighting the care that must be taken during the synthetic process in order to avoid misidentification of magnetic LDHs.
authors.affiliation: Instituto de Ciencia Molecular, Universidad de Valencia, c/Catedrático José Beltrán, 2, 46980 Paterna, Spain.
authors.forename: Gonzalo
authors.initials: G
authors.lastname: Abellán
authors.forename: Jose A
authors.initials: JA
authors.lastname: Carrasco
authors.forename: Eugenio
authors.initials: E
authors.lastname: Coronado